Here we have a good used and running well complete 6.6 LLY Duramax engine assembly removed from a 2003 GMC 2500hd. This will be fit all 01-04 2500/3500 trucks, but a couple of minor parts will need to be swapped over from your old engine if your truck is an 01-02, This engine will come with fresh new glow plugs installed as they are a common failure point, and if they dont remove properly you usually need to pull the whole cylinder head. This is being sold as a complete engine with all accessories and fuel system but WITHOUT any electrical. 60 day warranty covers the long block components only, does not cover any serviceable bolt on items which can be swapped from your core engine that we dont need back.